<div class="rel" id="example4reference1">
    <p class="bold">Reference</p>
</div>

<div class="popper" id="example4popper1">
    <p class="bold">Shifted popper</p>
    <p class="thin">on start</p>
    <div class="popper__arrow" x-arrow></div>
</div>

<div class="popper" id="example4popper2">
    <p class="bold">Shifted popper</p>
    <p class="thin">on end</p>
    <div class="popper__arrow" x-arrow></div>
</div>

<script>
document.addEventListener('DOMContentLoaded', function(){
    var shiftStart = new Popper(example4reference1, example4popper1, {
        placement: 'left-start',
    });

    var shiftEnd = new Popper(example4reference1, example4popper2, {
        placement: 'bottom-end',
    });

}, false);
</script>

<style>
    #example4popper1,
    #example4popper2 {
        width: 100px;
    }
    #example4popper1 {
        height: 150px;
    }
</style>
